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海温是影响长期天气过程的因子之一。也是“一个可能提高长期预报质量的物理因子”。关于长江中下游地区汛期旱涝的海温场特征已有一些研究。有的分析得出该区的汛期雨量与黑潮海域冬季(表层)海温异常有关;有的得出与冬季黄海冷水团的水温异常有关。新近,陈烈庭等的分析则得出南海南部和东南部的前期海温变化,对后期长江中下游初夏(5月)降水也有影响。 南海是一个比较封闭的高温海区,通过巴士海峡和台湾海峡与黑潮海域及东海进行着强烈的水交换,冬季南海北部(指15°N以北海区)的海温异常与黑潮区存在着准同
SST is one of the factors that affect the long-term weather process. It is also “a physical factor that may improve the quality of long-term forecasts.” Some researches have been done on the characteristics of SST over the flood season in the middle and lower reaches of the Yangtze River. Some analyzes show that the flood season rainfall in this area is related to the winter (surface) SST anomaly in the Kuroshio area, and some are related to the abnormal temperature of the cold water in the Yellow Sea in winter. Recently, Chen et. Al.’s analysis shows that the previous SST changes in the southern and southeastern South China Sea also have an impact on the precipitation in early summer (mid-May) of the middle and lower reaches of the Yangtze River in the latter part of the year. The South China Sea is a relatively enclosed high-temperature sea area where intense water exchange occurs between the Kuroshio area and the East China Sea via the Bashi Channel and the Taiwan Strait. During the winter, the SST anomalies in the northern South China Sea (north of 15 ° N) are associated with the Kuroshio Standard